of the fundamental
phases in programming is the definition of the levels of care
in the network of all the services available in the local
health system, regardless of their administrative level. 

      The development of the concept of levels of care is
based on two fundamental considerations:  (1) the existence
of a need for care originating from a specific health
situation or problem, and (2) the degree of complexity
required in order to achieve an adequate response capacity in
the health sy